Solution-Efficiency of a subject on a treadmill

Efficiency of a subject on a treadmill

Reference no: EM131403207

1. What is the efficiency of a subject on a treadmill who puts out work at the rate of 105 W while consuming oxygen at the rate of 2.00 L/min?(Hint:If the oxygen consumption is 2.00 L/min,then the power input is 700 W.) _______________

2. A person in good physical condition can put out 100 W of useful power for several hours at a stretch, perhaps by pedaling a mechanism that drives an electric generator. Neglecting any problems of generator efficiency and practical considerations such as resting time, answer the following.

a) How many people would it take to run a 3.00 kW electric clothes dryer? _______ people

b) How many people would it take to replace a large electric power plant that generates 700 MW?_________people

3. A large household air conditioner may consume 10.0 kW of power. What is the cost of operating this air conditioner 4.50 h per day for 40.0 d if the cost of electricity is $0.130 per kW·h? __________$

Reference no: EM131403207

Questions Cloud

Power consumption at the instant : A 100-W, 120-Vlightbulb has a resistance of 14Ωwhen cold (20°C) and 150Ωwhen on (hot). Part A: Calculate its power consumption at the instant it is turned on.

Would you place a personal deposit of one million dollars : Would you place a personal deposit of one million dollars or more in the publicly traded stock of this company? Would you invest $500,000 in the debt (bonds) of this company?

Estimate the cost of the energy lost : Assuming a two-wire line of 0.62-cm-diameter copper wire, estimate the cost of the energy lost to heat per hour per meter. Assume the cost of electricity is about 12 cents per kWh. The resistivity of copper is 1.68×10-8Ω⋅m.

Unconscious self esteem study : The researchers also fit the interaction model, E(y2) = β0 + β1x1 + β2x2 + β3x1x2. The t-test on the interaction term, β3, was ''significant'' with a p-value.

Efficiency of a subject on a treadmill : 1. What is the efficiency of a subject on a treadmill who puts out work at the rate of 105 W while consuming oxygen at the rate of 2.00 L/min?(Hint:If the oxygen consumption is 2.00 L/min,then the power input is 700 W.) _______________

Why a demand curve is also a curve of average revenue : Which is primarily responsible for the firm's zero economic profits in long-run equilibrium?

Angle of the submerged portion : A soda straw is struck into water at an angle of 36 degrees to the vertical. Looking straight down, what does the angle of the submerged portion of the straw to the vertical appear to be?

Calculate the viscosity of a fluid : Calculate the viscosity of a fluid that would allow a pressure drop of 35 kPa over a 5 mlength of 0.75-in. stainless steel sanitary pipe if the fluid is flowing at 0.12 m3/h and has adensity of 1010 kg/m3. Assume laminar flow.

Write the hypothesized equation of given model : The researchers fit an interaction model to the data. Write the hypothesized equation of this model.- In the words of the problem, explain what it means to say that ''x1 and x2 interact to effect y.'

User Account

All Pages

Efficiency of a subject on a treadmill

Reference no: EM131403207

Reference no: EM131403207

Questions Cloud

Reviews

Write a Review

Physics Questions & Answers

How much heat was generated

Evaluate what is the density of the object

How high vertically would it go before it stops

Find the length of its image in the mirror

How much is the line elongated

Find the final velocity of the three carts after collision

Evaluate the pressure drop in the constriction

The stationary siren on a firehouse is sounding

What is the right "motion camouflage" speed

Where does the energy come from that powers these winds

Detrmine the linear density of the string

Find velocity of particle at the mid point of the path

Assured A++ Grade

Academics

Major Subjects

Majors

Get In Touch

TERMS & POLICIES

HELP & SUPPORT